Yeah, a new file format is a must to keep everything allready made as it is, but you could even have layers where players where attached to a certain layer too? like for houses ? and maybe im a stealthy guy and I want to attack someone by jumping out of a tree that would be cool to have the player attached to ground layers also
That would make for nice bridges with out attachtoobj which I still don't have a perfect grasp on
Stairs could be an npc that just changed which layer the player was attached too
dunno just random ideas
